Skip to main content

Phone · LG · V20 Mini

LG V20 Mini Charging Port Repair

Charging Port Repair guide for the LG V20 Mini

Moderate
~53 min
20 steps

Before you begin

Tools

  • Phillips #00 screwdriver
  • Heat gun or hair dryer
  • Suction cup
  • Plastic opening picks
  • Spudger
  • Tweezers
  • Soldering iron
  • Desoldering braid
  • SIM card eject tool

Parts / materials

  • Replacement USB-C charging port
  • Flux
  • Solder
  • Isopropyl alcohol (99%)
  • Pre-cut rear cover adhesive tape

Safety

  • Disconnect the battery before desoldering or working on internal electronics.
  • Wear safety glasses when working with hot solder and heat sources.
  • Work in a well-ventilated area to avoid inhaling soldering fumes.
  • Handle hot tools carefully to prevent skin burns or component damage.

Overview

# LG V20 Mini Charging Port Repair Repair Guide Action-specific charging port repair walkthrough for the LG V20 Mini. About 53 minutes across 20 steps. This DIY guide walks through charging port repair on the LG V20 Mini (V Series series phone). Before you open the device, confirm the exact model number on the LG settings screen or rear housing so your replacement part matches the V20 Mini specifically—not a similar V Series sibling. Most DIY techs finish this LG V20 Mini charging port repair in about 53 minutes when parts and tools are ready. Difficulty is rated intermediate for this model. Recommended tools for this LG V20 Mini job: Phillips #00 screwdriver, Heat gun or hair dryer, Suction cup, Plastic opening picks, Spudger, Tweezers, Soldering iron, Desoldering braid. Parts and supplies: Replacement USB-C charging port, Flux, Solder, Isopropyl alcohol (99%), Pre-cut rear cover adhesive tape. Power the V20 Mini off completely, remove SIMs/SD cards if present, and work on a clean, well-lit surface with a magnetic mat for screws. If a step feels wrong for your LG V20 Mini, stop and compare the connector layout to the photos in this guide. When you prefer a same-day pro repair in Seattle instead, LML Repair can handle charging port repair for this model with tested parts and a workmanship warranty.

Step-by-step

  1. 1

    Turn Off the Device

    2 min

    Press and hold the power button, then tap Power Off on the screen. Ensure the device is fully shut down before proceeding.

  2. 2

    Eject SIM and MicroSD Tray

    1 min

    Insert a SIM eject tool into the hole on the side of the device. Push firmly to pop the tray out, then remove it completely.

  3. 3

    Heat the Rear Glass

    3 min

    Use a heat gun or hair dryer on low setting to warm the outer edges of the rear glass for 2 minutes. This softens the factory adhesive holding the back panel.

  4. 4

    Attach Suction Cup

    2 min

    Place a suction cup on the lower half of the rear glass near the edge. Pull upward steadily to create a small gap between the glass and the body.

  5. 5

    Slice the Back Cover Adhesive

    4 min

    Insert a thin plastic opening pick into the gap created by the suction cup. Slide the pick around all four edges to slice through the adhesive.

  6. 6

    Remove Rear Glass Panel

    2 min

    Carefully lift the rear glass panel away from the frame. Set it aside on a clean, soft surface.

  7. 7

    Unscrew Midframe Fasteners

    3 min

    Use a Phillips #00 screwdriver to remove all visible screws securing the internal plastic midframe. Keep track of each screw location.

  8. 8

    Pry Off the Midframe

    2 min

    Insert the flat end of a spudger under the edge of the plastic midframe. Carefully pry upward around the perimeter to release the plastic clips and remove it.

  9. 9

    Disconnect the Battery

    1 min

    Locate the battery connector on the motherboard. Use a plastic spudger to gently pop the press connector straight up.

  10. 10

    Disconnect Sub-Board Flex Cables

    2 min

    Use a spudger to disconnect the main display and daughterboard flex cables attached near the bottom of the phone.

  11. 11

    Unscrew the Daughterboard

    2 min

    Remove the remaining Phillips screws securing the lower daughterboard assembly to the housing.

  12. 12

    Lift Out Daughterboard

    2 min

    Insert a spudger beneath the daughterboard and gently lift it out of the lower chassis.

  13. 13

    Apply Liquid Flux

    2 min

    Apply a small amount of liquid soldering flux to the anchor pins and contact pads of the damaged USB-C port.

  14. 14

    Desolder the Old Port

    5 min

    Apply a hot soldering iron tip with desoldering braid to absorb solder from all anchor pins and data pads. Carefully lift the port off with tweezers.

  15. 15

    Clean the Circuit Pads

    3 min

    Clean remaining solder from the board pads using fresh desoldering braid, then wipe the area clean with isopropyl alcohol.

  16. 16

    Solder the New Port

    6 min

    Position the new USB-C port precisely over the board pads. Solder each anchor pin and contact pad securely, ensuring no solder bridges form.

  17. 17

    Reinstall the Daughterboard

    2 min

    Place the repaired daughterboard back into the chassis and tighten its retaining Phillips screws.

  18. 18

    Reconnect Cable Connectors

    2 min

    Snap the sub-board flex cable and battery connector back into their respective sockets on the motherboard.

  19. 19

    Reattach the Midframe

    3 min

    Align the midframe cover over the components, press down until it snaps in place, and reinstall all perimeter screws.

  20. 20

    Apply Adhesive and Close Back

    4 min

    Apply fresh pre-cut adhesive strips to the housing rim, align the rear glass, and press firmly around all edges to seal.

After your LG V20 Mini charging port repair

Power the V20 Mini back on and test the charging port repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this LG V20 Mini job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.

Keep learning

Explore more LG V20 Mini repair context in the encyclopedia, or open related DIY guides.

logo_footer

Stay in the loop

Get new guides, reviews, and repair news.

© 2026 LML Repair. All rights reserved.